However, the standard model for air-conditioned seats, developed by scientists at the Department of Energy's National Renewable Energy Laboratory (NREL), works like this: The fabric of the car seat is a porous mesh, so air can flow through it.
As chewing continues, the food is made softer and warmer, and the enzymes in saliva begin to break down carbohydrates in the food. After chewing, the food (now called a bolus) is swallowed. It enters the esophagus and via peristalsis continues on to the stomach, where the next step of digestion occurs.
| Filed Under: Animals 1 Comment. Chewing a cud is a process by which some animals, called ruminants (camels, goats, sheep, deer, and cattle), thoroughly digest their food.The cow, for example, has a stomach organized into sections to take care of hard-to-digest food.hen the cow first takes in food, it chews it just enough to moisten it. Once swallowed, the food goes to the stomachâs first section, where it is mixed with chemicals and softened. This softened food is called the cud, small balls of food.